Error after upgrade from 3.0 to 3.1

[tomekliw]

I have "Invalid Challenge Token! " error, when I try to log as another agent by using "Switch to agent" link.

Details:
Backend ERROR: OTRS-CGI-10 Perl: 5.8.8 OS: linux Time: Tue Oct 30 14:47:34 2012 Message: Invalid Challenge Token! Traceback (22504): Module: Kernel::Output::HTML::Layout::ChallengeTokenCheck (v1.381.2.13) Line: 1117 Module: Kernel::Modules::AdminUser::Run (v1.82) Line: 59 Module: Kernel::System::Web::InterfaceAgent::Run (v1.64) Line: 868 Module: ModPerl::ROOT::ModPerl::Registry::opt_otrs_bin_cgi_2dbin_index_2epl::handler (unknown version) Line: 46 Module: (eval) (v1.90) Line: 204 Module: ModPerl::RegistryCooker::run (v1.90) Line: 204 Module: ModPerl::RegistryCooker::default_handler (v1.90) Line: 170 Module: ModPerl::Registry::handler (v1.99) Line: 31

Maybe someone knows what happen. Please help and thanks in advance.

TEJOTEL.

[Giulio Soleni]

Hi,
did you check the required perl modules with otrs.CheckModules.pl script before upgrading?
Maybe this will not solve your issue but could be there's a missing requirement in the new version...

[jojo]

Check if all files are in the correct version. A possible cause is an old template